作者: D.V. Nanopoulos , D.A. Ross
DOI: 10.1016/0550-3213(79)90507-8
关键词: Quark 、 Gauge theory 、 Particle physics 、 Color charge 、 Fermion 、 Operator (physics) 、 Unified Model 、 Renormalization 、 Unified field theory 、 Physics
摘要: We calculate the complete two-loop corrections to matrix elements of fermion mass operator in a general gauge theory. Application SU(5) grand unified model shows that higher-order tend increase quark masses relative results lowest-order calculation. Thus consistency between theory and experiment demands at most six flavours.